BRASïLIA (AFP) - An armed man took a hotel employee hostage in the Brazilian capital and forced him to don a vest apparently stuffed with explosives. The gunman called a hotel courier in the early hours of Monday and pushed him into a room on the 13th floor of the Saint Peter hotel, a police spokesman told AFP. The man surrendered about seven hours later and was taken to a police station in Brasilia. It was not known if the apparent explosives were real, police commissioner Paulo Henrique Almeida said, telling reporters that an investigation had been opened.